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Delhi • Effective 2025-04-01

TPDDL Per Unit Electricity Rate (2026)

Tata Power Delhi Distribution Ltd.. Domestic per-unit rates from ₹3.00 to ₹8.00 per kWh — plus commercial and industrial slabs, FAC and duty. Latest SERC-approved tariff.

Slab 1 rate

₹3.00

first 200 units

Top slab

₹8.00

per unit

Eff. @ 100u

₹3.73

all-in /unit

Full TPDDL bill calculator All Delhi rates

TPDDL domestic slab rates

Energy charge per unit — the headline price you see on your bill. Excludes fixed, FAC and duty.

Slab (units / month) Energy rate (₹/unit)
1 – 200 ₹3.00
201 – 400 ₹4.50
401 – 800 ₹6.50
801 – 1200 ₹7.00
Above 1200 ₹8.00
Fixed charges
Slab-based
FAC / FPPCA
₹0.35/unit
Electricity duty
5%
Telescopic
Yes

Commercial (LT) per-unit rates

For shops, offices and small businesses on a LT-2 / commercial connection.

Slab (units / month) Energy rate (₹/unit)
Above 0 ₹9.50
Fixed charges
₹250/kW/mo
FAC / FPPCA
₹0.35/unit
Electricity duty
11%
Telescopic
No

Industrial (LT) per-unit rates

For LT industrial consumers — typically a flat per-unit rate.

Slab (units / month) Energy rate (₹/unit)
Above 0 ₹7.75
Fixed charges
₹170/kW/mo
FAC / FPPCA
₹0.35/unit
Electricity duty
5%
Telescopic
No

Effective TPDDL per-unit rate by consumption

All-in rate (energy + fixed @ 2 kW + FAC + duty) at common monthly consumption levels. Excludes subsidy.

At 50 units/month

₹3.94

≈ ₹197 bill

At 100 units/month

₹3.73

≈ ₹373 bill

At 150 units/month

₹3.66

≈ ₹549 bill

At 200 units/month

₹3.62

≈ ₹725 bill

At 300 units/month

₹4.11

≈ ₹1,234 bill

At 500 units/month

₹4.92

≈ ₹2,462 bill

At 1000 units/month

₹6.16

≈ ₹6,164 bill

For your actual figure with your sanctioned load and subsidy eligibility, use the TPDDL bill calculator.

About TPDDL tariff structure

Tata Power Delhi Distribution Ltd. bills domestic consumers using a telescopic slab structure. Each slab applies only to the units within that range, so adding a few more units never reprices your earlier (cheaper) units.

Beyond energy charges, the TPDDL bill includes a fixed charge of a load-band based amount on your sanctioned load, an FAC pass-through of ₹0.35/unit (revised monthly), and Delhi electricity duty of 5%. Eligible households also receive a state subsidy of ₹3/unit on the first 200 units.

We verify TPDDL rates against the latest SERC tariff order quarterly. Last verified: 2026-04-22. Original source: official tariff order.

Other Delhi DISCOMs

Compare per-unit rates across Delhi.

BRPL

BSES Rajdhani Power Limited

From ₹3.00/unit →

BYPL

BSES Yamuna Power Limited

From ₹3.00/unit →

TPDDL per-unit rate — common questions

Answers to the most common electricity bill questions in India.

What is the per unit electricity rate of TPDDL in 2026?
TPDDL domestic energy charges start at ₹3.00/unit for the first 200 units and rise to ₹8.00/unit at the highest slab. Slabs are telescopic — only units within each slab are billed at that rate. See the full slab table on this page. Effective 2025-04-01.
How much will 1 unit of electricity cost on my TPDDL bill?
1 unit (1 kWh) is billed at the slab rate that applies to your monthly consumption — starting at ₹3.00/unit. The effective rate on your bill is higher because of fixed charges (₹—/kW), FAC, and electricity duty (5%). At a 100-unit monthly consumption, the all-in rate is roughly ₹3.73/unit.
What is the commercial per-unit rate for TPDDL?
TPDDL commercial (LT) energy charges start at ₹9.50/unit and go up to ₹9.50/unit. Commercial fixed charges are ₹250/kW/month — typically higher than domestic. Industrial (LT) is usually a flat ₹7.75/unit.
What is the FAC and electricity duty for TPDDL?
TPDDL currently passes through ₹0.35/unit as Fuel Adjustment Charge (FAC / FPPCA — varies monthly). Delhi electricity duty is 5% on the energy + fixed + FAC base. These add to your effective per-unit cost beyond the headline slab rate.
Is there a subsidy on TPDDL per-unit rates?
Yes — eligible domestic consumers get a subsidy of ₹3/unit on the first 200 units. This effectively reduces the slab-1 rate to ₹0.00/unit for qualifying households.
How often does TPDDL change its per-unit rates?
Slab rates are revised through the annual SERC tariff order — typically effective from 1 April each financial year. The current TPDDL rates are effective from 2025-04-01. FAC is revised more frequently (often monthly) to reflect fuel cost movements.